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Macro Sensors are specialists in the design and manufacture of high-pressure and seawater-resistant LVDT-based linear position sensors for incorporation into a wide variety of subsea measurement systems. Some typical applications include monitoring structural movement for long-term FEA (Finite Element Analysis) of pipelines, derricks, moorings and other critical high stress members on offshore oil platforms.

As measurements must often be obtained in seawater to depths of 15,000 ft. and at external pressures of approximately 7500 psi, Macro Sensors designs its high-pressure and seawater resistant LVDTs from Monel 400, Inconel 625, and 316L stainless steel for pressure and corrosion resistance. These materials enhance the already high-reliability of the LVDT assembly, ensuring that it can meet service life requirements of at least 20 years, even if the device is fully exposed to seawater. More Information...

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• Overview of the NEW Sub Sea High Pressure & Temperature Postion Sensor
• General Specifications
• Mechanical Drawing &
  Connection Diagram
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Macro Sensors' LVDTs also resolve the problem of getting a signal back to the surface, even at great water depths. To minimize the number of pressure-sealed I/O connections and to minimize noise over long transmission lines, a 4-20mA two-wire, loop-powered I/O can be utilized. Offsets can be easily made in the data acquisition system on the platform above. High pressure subsea connectors (Impulse, Seacon, Ametek, etc.) are also available and can be supplied in either an axial or radial configuration.

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Use the links below for additional information and specifications of Macro Sensor's extensive line of products:

• Free-Core LVDT Position Sensors
• Spring-Loaded LVDT Position Sensors
• DC OPERATED SPRING LOADED LVDT
• AC OPERATED SPRING LOADED LVDT
• Air Extend / Spring Retract Position Sensors
• 4-20mA 2 Wire Loop Powered Position Sensors
• Harsh Environment LVDT Position Sensors
• LVDT Position Sensors for High Temperatures
• Metric LVDT Position Sensors
• Rotary Sensors
• Potentiometer Replacement Sensors
• Signal Conditioning